CN217979241U

CN217979241U - Gas collecting pipe

Info

Publication number: CN217979241U
Application number: CN202120936750.5U
Authority: CN
Inventors: 王文杰; 金玉朋; 郎壮
Original assignee: Zhejiang DunAn Hetian Metal Co Ltd
Current assignee: Zhejiang DunAn Hetian Metal Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-12-06
Anticipated expiration: 2031-04-30
Also published as: WO2022227709A8; WO2022227709A1; JP2024515161A

Abstract

The utility model relates to a refrigeration technology field especially relates to a discharge. The gas collecting pipe comprises a stainless steel main collecting pipe, a red copper sleeve and a brass connector, wherein the red copper sleeve is provided with a first end and a second end which are oppositely arranged, and the stainless steel main collecting pipe is arranged at the first end of the red copper sleeve and is welded with the red copper sleeve; the brass connector is arranged at the second end of the red copper sleeve and is welded with the red copper sleeve. The utility model has the advantages that: the situation that the surface of the stainless steel main collecting pipe is blackened due to the fact that a brass connector is directly welded on the stainless steel main collecting pipe can be avoided, corrosion resistance and strength of the gas collecting pipe are improved, and therefore heat exchange efficiency in an air conditioning system is improved; meanwhile, the red copper sleeve is adopted for switching, so that the chemical property is stable, the durability and the heat resistance are realized, the pressure resistance is realized, the corrosion resistance is high, the connection is convenient, the cost is low, the maintenance is easy, and the vibration resistance and the impact resistance are excellent.

Description

Gas collecting pipe

Technical Field

The utility model relates to a refrigeration technology field especially relates to a discharge.

Background

The gas collecting pipe is applied to an air conditioning system and used for guiding the circulation of a refrigerant and optimizing a flow path structure so as to achieve the purpose of sufficient heat exchange.

The gas collecting pipe comprises a main collecting pipe, wherein the existing part of the main collecting pipe is formed by processing stainless steel materials, the main collecting pipe made of the stainless steel materials is directly welded with a brass connector, and then is connected with a copper pipe set of the air conditioning system through the brass connector, but the surface of the main collecting pipe made of the stainless steel materials is blackened due to the direct welding of the main collecting pipe made of the stainless steel materials and the brass connector, the corrosion resistance of the main collecting pipe made of the stainless steel is influenced, the strength of the gas collecting pipe is reduced, and the heat exchange efficiency of the air conditioning system is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a gas collecting tube with high strength, high corrosion resistance and low cost.

The utility model provides a gas collecting pipe, the gas collecting pipe includes stainless steel main collector, red copper sheathing and brass joint, the red copper sheathing has relative first end and second end that sets up, the stainless steel main collector is located the first end of red copper sheathing and with the welding of red copper sheathing;

the brass connector is arranged at the second end of the red copper sleeve and is welded with the red copper sleeve.

In the application, the brass sleeve is arranged between the brass connector and the stainless steel main header, the stainless steel main header is welded with the first end of the brass sleeve, and the brass connector is welded with the second end of the brass sleeve, so that the situation that the surface of the stainless steel main header is blackened due to the fact that the brass connector is directly welded on the stainless steel main header can be avoided, the corrosion resistance and the strength of the gas collecting pipe are improved, and the heat exchange efficiency in an air-conditioning system is improved; meanwhile, the red copper sleeve is adopted for switching, so that the chemical property is stable, the durability and the heat resistance are realized, the pressure resistance is realized, the corrosion resistance is high, the connection is convenient, the cost is low, the maintenance is easy, and the vibration resistance and the impact resistance are excellent.

In one embodiment, one end of the stainless steel main header extends into the copper sleeve from the first end, and the second end of the copper sleeve extends into the brass fitting;

wherein the part of the stainless steel main header extending into the red copper bush is positioned in the brass connector.

So set up, make the connection between stainless steel main header and the brass joint more firm, improve the joint strength of brass joint and stainless steel main header.

In one embodiment, the red copper sleeve is tubular, and the length of the red copper sleeve is H1, wherein H1 is more than or equal to 15mm.

By the arrangement, the stainless steel main collecting pipe can be protected from being burnt, the strength of the gas collecting pipe is enhanced, and the gas collecting pipe is durable; if the length of the red copper sleeve is too short, the stainless steel main collecting pipe can be burnt in the process of welding the brass connector and the red copper sleeve, the strength of the gas collecting pipe is reduced, and therefore the heat exchange efficiency in the air conditioning system is reduced.

In one embodiment, the inner diameter of one end, inserted into the brass joint, of the red copper sleeve is R1, and the inner diameter of the brass joint is R2; wherein R1> R2.

So set up, be convenient for red copper cover and brass connect and weld.

In one embodiment, one end of the stainless steel main header is provided with a first necking section, the first necking section is inserted into the red copper sleeve, and the inner diameter of the first necking section is R3; wherein R3> R2.

By the arrangement, the refrigerant can be ensured to be fully circulated, and the throttling condition is avoided; if the inner diameter of the first reducing section is smaller than that of the brass joint, the flow of the refrigerant is throttled in the process that the refrigerant flows from the first reducing section to the brass joint, and the heat exchange efficiency in the air-conditioning system is reduced.

In one embodiment, the red copper sleeve comprises a first section, a second section and a third section, the second section is arranged between the first section and the third section, the first section is welded with the stainless steel main header, and the third section at least partially extends into the brass fitting and is welded with the brass fitting.

So set up, be convenient for purple copper cover and brass connect and the welding between the stainless steel main collection pipe to, can avoid connecting brass and connect the beading on the stainless steel main collection pipe, lead to the condition that stainless steel main collection pipe surface blackened, improve the corrosion resistance and the intensity of discharge, thereby improve the heat exchange efficiency among the air conditioning system.

In one embodiment, the first section is provided as a flaring section, and the flaring section is sleeved on the stainless steel main header; the third section is provided as a second necked down section, at least part of the second necked down section being inserted into the brass fitting.

Due to the arrangement, the flaring section can limit the distance that the stainless steel main collecting pipe extends into the red copper sleeve, if the stainless steel main collecting pipe extends too long, welding is inconvenient, and if the stainless steel main collecting pipe extends too short, the problem of infirm welding can be caused; the first section is arranged to be an expanding section, so that the processing is convenient, the stainless steel main collecting pipe can be conveniently inserted, meanwhile, the welding between the stainless steel main collecting pipe and the red copper sleeve is convenient, and the welding stability is enhanced; simultaneously, set up the third section into the second throat section, during convenient and the inserting brass connects of being convenient for of processing, reinforcing welded steadiness.

In one embodiment, a gap exists between one end of the brass fitting adjacent to the main stainless steel header and one end of the third segment adjacent to the second segment.

So set up, the filling of solder when being convenient for brass joint and copper pipe welding.

In one embodiment, a positioning step is arranged in the brass joint, and the second end of the red copper sleeve is inserted into the brass joint and abuts against the positioning step.

According to the arrangement, the positioning step is arranged in the brass connector, so that the distance of the red copper sleeve extending into the brass connector can be limited, the red copper pipe is welded with the brass connector at a proper position, and the welding firmness is ensured; if the copper tube stretches into overlength, inconvenient welding, if the copper tube stretches into too short, can produce the insecure problem of welding.

In one embodiment, the stainless steel main header and the red copper sleeve are connected through furnace brazing; and/or the brass joint and the red copper sleeve are welded through flame.

By the arrangement, the protective atmosphere of the brazing material used for brazing in the furnace is cheap, so that the cost can be reduced; the flame welding operation is simple, the use is convenient and fast, and the cost is low.

Compared with the prior art, the utility model provides a gas collecting pipe, through set up the red copper cover between brass joint and stainless steel main collector, and with the first end welding of stainless steel main collector and red copper cover, brass joint welds with the second end of red copper cover, can avoid with the brass joint direct welding on stainless steel main collector, lead to the condition that stainless steel main collector surface blackened, improve the corrosion resistance and the intensity of gas collecting pipe, thereby improve the heat exchange efficiency among the air conditioning system; meanwhile, the red copper sleeve is adopted for switching, so that the chemical property is stable, the durability and the heat resistance are realized, the pressure resistance is realized, the corrosion resistance is high, the connection is convenient, the cost is low, the maintenance is easy, and the vibration resistance and the impact resistance are excellent.

Drawings

Fig. 1 is a schematic structural diagram of a gas collecting tube in an embodiment of the present invention.

Fig. 2 is a schematic view of fig. 1 from another perspective.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural diagram of a gas collecting tube in another embodiment provided by the present invention.

Fig. 5 is a schematic view of fig. 4 from another viewing angle.

Fig. 6 is a partially enlarged view of fig. 5 at B.

In the figure, 100, a gas collecting pipe; 10. a stainless steel main header; 11. a first throat section; 20. a red copper sleeve; 21. a first end; 22. a second end; 23. a first stage; 24. a second stage; 25. a third stage; 30. a brass fitting; 31. positioning a step; 40. a branch pipe.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, the present invention provides a gas collecting tube 100, and the gas collecting tube 100 is applied to an air conditioning refrigeration system for optimizing a flow path structure of a refrigerant, so that the refrigerant can perform sufficient heat exchange.

The existing gas collecting pipe comprises a main collecting pipe, part of the main collecting pipe is formed by processing stainless steel materials, the main collecting pipe made of the stainless steel materials is directly welded with a brass connector, and then the brass connector is connected with a copper pipe set of an air conditioning system.

Referring to fig. 1-6, a gas collecting pipe 100 provided by the present application includes a stainless steel main header 10, a red copper bush 20 and a brass connector 30, wherein the red copper bush 20 has a first end 21 and a second end 22 opposite to each other, and the stainless steel main header 10 is disposed at the first end 21 of the red copper bush 20 and welded to the red copper bush 20; the brass connector 30 is arranged at the second end 22 of the red copper sleeve 20 and is welded with the red copper sleeve 20; by arranging the red copper bush 20 between the brass connector 30 and the stainless steel main header 10, welding the stainless steel main header 10 and the first end 21 of the red copper bush 20, and welding the brass connector 30 and the second end 22 of the red copper bush 20, the situation that the surface of the stainless steel main header 10 is blackened due to the fact that the brass connector 30 is directly welded on the stainless steel main header 10 can be avoided, the corrosion resistance and the strength of the gas collecting pipe 100 are improved, and therefore the heat exchange efficiency in an air conditioning system is improved; meanwhile, the red copper sleeve 20 is adopted for switching, so that the connection structure is stable in chemical performance, durable, heat-resistant, pressure-resistant, strong in corrosion resistance, convenient to connect, low in cost, easy to maintain and excellent in vibration resistance and impact resistance.

In the application, the main collecting pipe is made of stainless steel, so that the hardness of the gas collecting pipe 100 can be improved; meanwhile, because the price of the copper material is relatively high, in order to reduce the production cost, the stainless steel material is adopted to replace the copper material to process the main collecting pipe, so that the stainless steel main collecting pipe 10 in the application is formed; simultaneously, in the refrigeration technology field, generally use the copper nest of tubes of air conditioner as the connecting pipe and connect two spare parts, it is convenient in order to be connected with the copper nest of tubes, spare part also adopts the copper material to make, nevertheless because the price of copper material is higher, in order to reduce production cost, this application adopts stainless steel material to replace copper material preparation part spare part, in the manufacturing process, need be in the same place the stainless steel pipe welding of copper nest of tubes and stainless steel spare part, promptly in this application, the copper nest of tubes welds with stainless steel main header 10 in this application.

In this application, when the too little welding of air conditioner system space is inconvenient, adopt brass to connect 30 to carry out the thread tightening, be connected brass connects 30 and copper pipe group, reduce the technology degree of difficulty, be convenient for processing and reduce cost.

Further, in one embodiment, referring to fig. 1-3, one end of the stainless steel main header 10 extends into the red copper sleeve 20 from the first end 21, and the second end 22 of the red copper sleeve 20 extends into the brass union 30; wherein, the part of the stainless steel main header 10 extending into the red copper bush 20 is positioned in the brass connector 30; the connection between the stainless steel main header 10 and the brass fitting 30 can be made more stable, and the strength of the connection between the brass fitting 30 and the stainless steel main header 10 can be improved.

Specifically, the red copper bush 20 is tubular, and the length of the red copper bush 20 is H1, wherein H1 is more than or equal to 15mm; when the H1 is larger than or equal to 15mm, the stainless steel main collecting pipe 10 can be protected from being burnt, the strength of the gas collecting pipe 100 is enhanced, and the gas collecting pipe 100 is durable; if the length of the red copper bush 20 is too short, the stainless steel main header 10 may be burned during the welding of the brass fitting 30 to the red copper bush 20, and the strength of the header 100 may be reduced, thereby reducing the heat exchange efficiency in the air conditioning system.

Referring to fig. 3, the inner diameter of the end of the red copper sleeve 20 inserted into the brass connector 30 is R1, and the inner diameter of the brass connector 30 is R2; wherein R1 is greater than R2, which is convenient for welding the red copper sleeve 20 and the brass connector 30.

With continued reference to fig. 3, one end of the stainless steel main header 10 is provided with a first reducing section 11, the first reducing section 11 is inserted into the red copper bush 20, and the inner diameter of the first reducing section 11 is R3; wherein R3> R2; the refrigerant can be ensured to be fully circulated, and the throttling condition can not exist; if the inner diameter of the first reducing section 11 is smaller than the inner diameter of the brass connector 30, the flow of the refrigerant is throttled in the process that the refrigerant flows from the first reducing section 11 to the brass connector 30, and the heat exchange efficiency in the air conditioning system is reduced.

In another embodiment, referring to fig. 4-6, the copper sheath 20 includes a first section 23, a second section 24, and a third section 25, the second section 24 is disposed between the first section 23 and the third section 25, the first section 23 is welded to the stainless steel main header 10, and the third section 25 extends at least partially into the brass fitting 30 and is welded to the brass fitting 30; the welding between the red copper bush 20 and the brass connector 30 and between the stainless steel main header 10 is facilitated, and the situation that the surface of the stainless steel main header 10 is blackened due to the fact that the brass connector 30 is directly welded on the stainless steel main header 10 can be avoided, so that the corrosion resistance and the strength of the gas collecting pipe 100 are improved, and the heat exchange efficiency in an air conditioning system is improved.

Further, the first section 23 is provided as a flared section, and the flared section is sleeved on the stainless steel main header 10; the flaring section can limit the distance that the stainless steel main header 10 extends into the red copper bush 20, if the stainless steel main header 10 extends too long, welding is inconvenient, and if the stainless steel main header 10 extends too short, the problem of infirm welding can be caused; and, first section 23 sets up to the flaring section, and processing is convenient and be convenient for the insertion of stainless steel owner's collector 10, and simultaneously, the stainless steel owner's collector 10 of being convenient for welds with red copper sheathing 20, reinforcing welded steadiness.

Further, the third section 25 is provided as a second reduced section, at least part of which is inserted into the brass fitting 30; the third section 25 is set to be a second necking section, so that the processing is convenient, the brass connector 30 can be conveniently inserted, and the welding stability is enhanced.

Specifically, referring to fig. 6, a gap exists between the end of the brass fitting 30 adjacent to the main stainless steel header 10 and the end of the third section 25 adjacent to the second section 24, so that the brazing fitting 30 can be easily filled with solder when being welded to the red copper bush 20.

Referring to fig. 1-6, a positioning step 31 is provided in the brass connector 30, and the second end 22 of the copper bush 20 is inserted into the brass connector 30 and abuts against the positioning step 31; the brass connector 30 is internally provided with the positioning step 31, so that the distance of the red copper sleeve 20 extending into the brass connector 30 can be limited, the red copper sleeve 20 is welded with the brass connector 30 at a proper position, and the welding firmness is ensured; if the red copper bush 20 stretches into overlength, inconvenient welding, if the red copper bush 20 stretches into the shortness, can produce the insecure problem of welding.

In the present application, the stainless steel main header 10 and the red copper bush 20 are joined by furnace brazing; and/or the brass joint 30 is welded with the red copper sleeve 20 through flame; the protective atmosphere of the brazing material used for furnace brazing is cheap, so that the cost can be reduced; the flame welding operation is simple, the use is convenient and fast, and the cost is low.

The gas collecting pipe 100 provided by the present application further includes a plurality of branch pipes 40, and the plurality of branch pipes 40 are installed on the main header at intervals and are respectively communicated with the inside of the main header, so that the heat exchange efficiency in the air conditioning system can be improved.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims

1. A gas collecting pipe is characterized by comprising a stainless steel main collecting pipe, a red copper sleeve and a brass connector, wherein the red copper sleeve is provided with a first end and a second end which are oppositely arranged, and the stainless steel main collecting pipe is arranged at the first end of the red copper sleeve and is welded with the red copper sleeve;

2. The manifold as recited in claim 1, wherein one end of said main stainless steel header extends from said first end into said red copper sleeve, and a second end of said red copper sleeve extends into said brass fitting;

wherein the part of the stainless steel main header extending into the red copper bush is positioned in the brass joint.

3. The gas collecting tube as claimed in claim 1, wherein the red copper sleeve is tubular and has a length H1, wherein H1 is greater than or equal to 15mm.

4. The gas collecting tube as claimed in claim 1, wherein the inner diameter of the end of the red copper sleeve inserted into the brass fitting is R1, and the inner diameter of the brass fitting is R2;

wherein R1> R2.

5. The gas collecting pipe according to claim 4, wherein one end of the stainless steel main header is provided with a first necking section, the first necking section is inserted into the red copper bush, and the inner diameter of the first necking section is R3;

wherein R3> R2.

6. The manifold of claim 1, wherein said red copper jacket comprises a first section, a second section, and a third section, said second section being disposed between said first section and said third section, said first section being welded to said stainless steel main manifold, said third section extending at least partially into said brass fitting and being welded to said brass fitting.

7. The gas header as claimed in claim 6, wherein the first section is provided as a flared section which is sleeved on the stainless steel main header; the third section is provided as a second necked-down section, at least part of which is inserted into the brass fitting.

8. The manifold of claim 7, wherein a gap exists between an end of said brass fitting proximate said main stainless steel header and an end of said third segment proximate said second segment.

9. The manifold as in any of claims 1-8, wherein a positioning step is provided in the brass fitting, and the second end of the red copper sleeve is inserted into the brass fitting and abuts against the positioning step.

10. The collector of claim 1 wherein said stainless steel main header and said red copper jacket are joined by furnace brazing;

and/or the brass joint and the red copper sleeve are welded through flame.